T. D. A. COCK ERE LL. 189 



(12.) Farandrena conciniiiila n. sp. 'J, .—Length 7 mm., black, with 

 thill, long, pale gray or whitish hair. Head transversely oval ; facial quadrangle 

 broader than long; clypeus lemon-yellow, with two black spots, no other yellow on 

 face; a conspicuous and long fringe of white hair below the margin of the cly- 

 peus, overlapping the mandibles; mandibles dark; flagellum. except at base; 

 ferruginous beneath ; front and vertex minutely roughened ; cheeks not so laige 

 as in P. andrenoides ; mesothorax minutely tessellate, with shallow punctures, 

 much as in nndrenoides ; metathorax like that of andrenoides ; tegulfe brown; 

 wings hyaline; nervures and the large stigma ferruginous; venation as in 

 rtuf/rejiotdes, but the second submarginal cell longer on the cubital nervure; legs 

 and abdomen like those of andrenoides, but the abdomen hardly so hairy. Apex 

 of abdomen truncate, and penultimate ventral segment produced into a blunt 

 spine on each side, as in andrenoides. 



Hah. — Southern California, one sent by Mr. Fox. Close to 

 andrenoides and nevadensis ; easily known by the yellow of the 

 face being confined to the clypeus. 



(13.) Paraiidreiia eiioeki n. sji. 'J, .--Length about 8 mm., black, with 

 long white hair; face wholly black. 



Siibg. ch.—Anteunfe, fairly long; abdomen without hair-bands; stigma large; 

 second sahmarginal cell longer than first on cubital nervure; apical angle of third dis- 

 coidal cell a right angle; apex of abdomen truncate; no suhapical lateral spines. 

 The two characters italicised differ from Parandrena, s. str. 



fip. ch. — Head transversely oval ; mandibles slender, dark, notched within, 

 becoming ferruginous at tips; process of labrum inclined to be bifid ; flagellum 

 faintly brownish beneath; face covered with long sUky vfh\te hair, except at the 

 extreme sides, where it is black ; cheeks and occiput with white hair, except behind 

 the tops of the eyes, where it is black; front and vertex coarsely rugulose, the 

 vertex with distinct grooves; clypeus roughened, with no median smooth line; 

 thorax small, not so broad as head ; mesothorax dull, minutely roughened, with numer- 

 ous obscure but large shallow punctures ; base of metathorax irregularly reticulated with 

 raised lines ; pubescence of thorax long and thin ; tegulse dark brown, with shal- 

 low punctures; wings perfectly clear; nervures and stigma dark brown ; second 

 submarginal cell very long, receiving the recurrent nervures at about the end of 

 its first and beginning of its last fifths. Legs slender, brown-black, with pallid 

 hair; abdomen oval, shining; punctures small, feeble and sparse; no hair hands, 

 scattered white hairs becoming dense at the apex. 



Hah. — Southern California, one sent by Mr. Fox. I think this 

 is a derivative of Andrena independently from Parandrena, but it 

 has the general build and appearance of the letter genus. It is 

 named after Mr. Enoch, whose admirable preparations of the 

 mouth-pieces of bees, figured by Mr. E. Saunders, are of constant 

 assistance to the apidologist. 



(14.j HalictoideK saiindersi n. sp. 9-— Length 7 mm., black, with not 

 veiy abundant pubescence, jiale greyish ochreous above, sordid white below. 

 Head seen from in front nearly round, about as broad as thorax ; antennse short 

 and stout, truncate at end ; flagellum. except at base, dull ferruginous beneath ; 



TRANS. AM. ENT. SOC. XXV. DECEMBER. 1898. 



